diff --git a/systems/x86_64-linux/carbon/default.nix b/systems/x86_64-linux/carbon/default.nix
index ef51ef1..b533b62 100644
--- a/systems/x86_64-linux/carbon/default.nix
+++ b/systems/x86_64-linux/carbon/default.nix
@@ -54,6 +54,7 @@
     hugo
     nixos-generators
     vlc
+    signal-desktop
   ];
 
   programs.light.enable = true;